38297987 has 8 divisors (see below), whose sum is σ = 47136096. Its totient is φ = 30301632.

The previous prime is 38297969. The next prime is 38298011. The reversal of 38297987 is 78979283.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38297987 - 2²⁰ = 37249411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38297947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210338 + ... + 210519.

It is an arithmetic number, because the mean of its divisors is an integer number (5892012).

Almost surely, 2^38297987 is an apocalyptic number.

38297987 is a deficient number, since it is larger than the sum of its proper divisors (8838109).

38297987 is a wasteful number, since it uses less digits than its factorization.

38297987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420877.

The product of its digits is 1524096, while the sum is 53.

The square root of 38297987 is about 6188.5367414277. The cubic root of 38297987 is about 337.0740473670.

The spelling of 38297987 in words is "thirty-eight million, two hundred ninety-seven thousand, nine hundred eighty-seven".